VOL. XCIV, NO. 247
★ WIDE MOAT STOCKS COMPARISON ★
NO ADVICE
Tuesday, December 30, 2025
Stock Comparison
GSK plc vs Sanofi
Compare moat strength, market structure, and segment coverage to understand how each company defends its edge.
GSK plc
GSK · London Stock Exchange
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Sanofi
SAN · Euronext Paris
Weighted average of segment moat scores, combining moat strength, durability, confidence, market structure, pricing power, and market share.
Comparison highlights
- Moat score gap: Sanofi leads (74 / 100 vs 62 / 100 for GSK plc).
- Segment focus: GSK plc has 3 segments (37.6% in Specialty Medicines); Sanofi has 3 segments (79.8% in Pharma (Prescription Medicines)).
- Primary market structure: Oligopoly vs Oligopoly. Pricing power: Strong vs Moderate.
- Moat breadth: GSK plc has 4 moat types across 3 domains; Sanofi has 5 across 3.
Primary market context
GSK plc
Specialty Medicines
Branded specialty pharmaceuticals (HIV, oncology, immunology/respiratory)
Global
Hospitals, specialist physicians, payers
Innovator & branded manufacturer
37.6%
Sanofi
Pharma (Prescription Medicines)
Branded prescription pharmaceuticals (immunology, rare disease, neurology, oncology, general medicines)
Global
Patients via payers/providers and channel partners (wholesalers, pharmacies, hospitals)
Research-based drug developer, manufacturer, and marketer
79.8%
Side-by-side metrics
Moat coverage
Shared moat types
GSK plc strengths
Sanofi strengths
Segment mix
GSK plc segments
Full profile >Vaccines
Oligopoly
Specialty Medicines
Oligopoly
General Medicines
Competitive
Sanofi segments
Full profile >Pharma (Prescription Medicines)
Oligopoly
Vaccines
Oligopoly
Opella (Consumer Healthcare - Sanofi minority stake)
Competitive
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This directory blends AI‑assisted discovery with human curation. Entries are reviewed, edited, and organized with the goal of expanding coverage and sharpening quality over time. Your feedback helps steer improvements (because no single human can capture everything all at once).
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